public static void nk_textedit_undo(nk_text_edit state)
{
nk_text_undo_state s = state.Undo;
nk_text_undo_record u = new nk_text_undo_record();
if ((s.undo_point) == (0))
{
return;
}
u = (nk_text_undo_record)(s.undo_rec[s.undo_point - 1]);
fixed(nk_text_undo_record *r2 = s.undo_rec)
{
var r = r2 + s.redo_point - 1;
r->char_storage = (short)(-1);
r->insert_length = (short)(u.delete_length);
r->delete_length = (short)(u.insert_length);
r->where = (int)(u.where);
if ((u.delete_length) != 0)
{
if ((s.undo_char_point + u.delete_length) >= (999))
{
r->insert_length = (short)(0);
}
else
{
int i;
while ((s.undo_char_point + u.delete_length) > (s.redo_char_point))
{
nk_textedit_discard_redo(s);
if ((s.redo_point) == (99))
{
return;
}
}
r = r2 + s.redo_point - 1;
r->char_storage = ((short)(s.redo_char_point - u.delete_length));
s.redo_char_point = ((short)(s.redo_char_point - u.delete_length));
for (i = (int)(0); (i) < (u.delete_length); ++i)
{
s.undo_char[r->char_storage + i] = (char)(state.Text[(int)(u.where + i)]);
}
}
state.Text.remove_at((int)(u.where), (int)(u.delete_length));
}
}
if ((u.insert_length) != 0)
{
state.Text.insert_at((int)(u.where), s.undo_char, u.char_storage, (int)(u.insert_length));
s.undo_char_point = ((short)(s.undo_char_point - u.insert_length));
}
state.Cursor = (int)((short)(u.where + u.insert_length));
s.undo_point--;
s.redo_point--;
}
public static void nk_textedit_undo(nk_text_edit state)
{
NkTextUndoState s = state.undo;
nk_text_undo_record u = new nk_text_undo_record();
nk_text_undo_record *r;
if ((s.UndoPoint) == (0))
{
return;
}
u = (nk_text_undo_record)(s.UndoRec[s.UndoPoint - 1]);
r = (nk_text_undo_record *)s.UndoRec + s.RedoPoint - 1;
r->char_storage = (short)(-1);
r->insert_length = (short)(u.delete_length);
r->delete_length = (short)(u.insert_length);
r->where = (int)(u.where);
if ((u.delete_length) != 0)
{
if ((s.UndoCharPoint + u.delete_length) >= (999))
{
r->insert_length = (short)(0);
}
else
{
int i;
while ((s.UndoCharPoint + u.delete_length) > (s.RedoCharPoint))
{
nk_textedit_discard_redo(s);
if ((s.RedoPoint) == (99))
{
return;
}
}
r = (nk_text_undo_record *)s.UndoRec + s.RedoPoint - 1;
r->char_storage = ((short)(s.RedoCharPoint - u.delete_length));
s.RedoCharPoint = ((short)(s.RedoCharPoint - u.delete_length));
for (i = (int)(0); (i) < (u.delete_length); ++i)
{
s.UndoChar[r->char_storage + i] = (char)(state._string_[(int)(u.where + i)]);
}
}
state._string_.remove_at((int)(u.where), (int)(u.delete_length));
}
if ((u.insert_length) != 0)
{
state._string_.insert_at((int)(u.where), (char *)s.UndoChar + u.char_storage,
(int)(u.insert_length));
s.UndoCharPoint = ((short)(s.UndoCharPoint - u.insert_length));
}
state.cursor = (int)((short)(u.where + u.insert_length));
s.UndoPoint--;
s.RedoPoint--;
}
public static void nk_textedit_redo(nk_text_edit state)
{
nk_text_undo_state s = state.Undo;
nk_text_undo_record *u;
nk_text_undo_record r = new nk_text_undo_record();
if ((s.redo_point) == (99))
{
return;
fixed(nk_text_undo_record *u2 = s.undo_rec)
{
u = u2 + s.undo_point;
r = (nk_text_undo_record)(s.undo_rec[s.redo_point]);
u->delete_length = (short)(r.insert_length);
u->insert_length = (short)(r.delete_length);
u->where = (int)(r.where);
u->char_storage = (short)(-1);
if ((r.delete_length) != 0)
{
if ((s.undo_char_point + u->insert_length) > (s.redo_char_point))
{
u->insert_length = (short)(0);
u->delete_length = (short)(0);
}
else
{
int i;
u->char_storage = (short)(s.undo_char_point);
s.undo_char_point = ((short)(s.undo_char_point + u->insert_length));
for (i = (int)(0); (i) < (u->insert_length); ++i)
{
s.undo_char[u->char_storage + i] = (char)(state.Text[(int)(u->where + i)]);
}
}
state.Text.remove_at((int)(r.where), (int)(r.delete_length));
}
}
if ((r.insert_length) != 0)
{
state.Text.insert_at((int)(r.where), s.undo_char, r.char_storage, (int)(r.insert_length));
}
state.Cursor = (int)(r.where + r.insert_length);
s.undo_point++;
s.redo_point++;
}
public static void nk_textedit_redo(nk_text_edit state)
{
NkTextUndoState s = state.undo;
nk_text_undo_record *u;
nk_text_undo_record r = new nk_text_undo_record();
if ((s.RedoPoint) == (99))
{
return;
}
u = (nk_text_undo_record *)s.UndoRec + s.UndoPoint;
r = (nk_text_undo_record)(s.UndoRec[s.RedoPoint]);
u->delete_length = (short)(r.insert_length);
u->insert_length = (short)(r.delete_length);
u->where = (int)(r.where);
u->char_storage = (short)(-1);
if ((r.delete_length) != 0)
{
if ((s.UndoCharPoint + u->insert_length) > (s.RedoCharPoint))
{
u->insert_length = (short)(0);
u->delete_length = (short)(0);
}
else
{
int i;
u->char_storage = (short)(s.UndoCharPoint);
s.UndoCharPoint = ((short)(s.UndoCharPoint + u->insert_length));
for (i = (int)(0); (i) < (u->insert_length); ++i)
{
s.UndoChar[u->char_storage + i] = (char)(state._string_[(int)(u->where + i)]);
}
}
state._string_.remove_at((int)(r.where), (int)(r.delete_length));
}
if ((r.insert_length) != 0)
{
state._string_.insert_at((int)(r.where), (char *)s.UndoChar + r.char_storage,
(int)(r.insert_length));
}
state.cursor = (int)(r.where + r.insert_length);
s.UndoPoint++;
s.RedoPoint++;
}
